Alright, let's solve this math problem step by step. First, we have the number 87. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 451. So, we're going to take the number 87 and add it to itself 451 times.
Step 1: 0 + 87 = 87
Step 2: 87 + 87 = 174
Step 3: 174 + 87 = 261
Step 4: 261 + 87 = 348
Step 5: 348 + 87 = 435
Step 6: 435 + 87 = 522
Step 7: 522 + 87 = 609
Step 8: 609 + 87 = 696
Step 9: 696 + 87 = 783
Step 10: 783 + 87 = 870
Step 11: 870 + 87 = 957
Step 12: 957 + 87 = 1044
Step 13: 1044 + 87 = 1131
Step 14: 1131 + 87 = 1218
Step 15: 1218 + 87 = 1305
Step 16: 1305 + 87 = 1392
Step 17: 1392 + 87 = 1479
Step 18: 1479 + 87 = 1566
Step 19: 1566 + 87 = 1653
Step 20: 1653 + 87 = 1740
Step 21: 1740 + 87 = 1827
Step 22: 1827 + 87 = 1914
Step 23: 1914 + 87 = 2001
Step 24: 2001 + 87 = 2088
Step 25: 2088 + 87 = 2175
Step 26: 2175 + 87 = 2262
Step 27: 2262 + 87 = 2349
Step 28: 2349 + 87 = 2436
Step 29: 2436 + 87 = 2523
Step 30: 2523 + 87 = 2610
Step 31: 2610 + 87 = 2697
Step 32: 2697 + 87 = 2784
Step 33: 2784 + 87 = 2871
Step 34: 2871 + 87 = 2958
Step 35: 2958 + 87 = 3045
Step 36: 3045 + 87 = 3132
Step 37: 3132 + 87 = 3219
Step 38: 3219 + 87 = 3306
Step 39: 3306 + 87 = 3393
Step 40: 3393 + 87 = 3480
Step 41: 3480 + 87 = 3567
Step 42: 3567 + 87 = 3654
Step 43: 3654 + 87 = 3741
Step 44: 3741 + 87 = 3828
Step 45: 3828 + 87 = 3915
Step 46: 3915 + 87 = 4002
Step 47: 4002 + 87 = 4089
Step 48: 4089 + 87 = 4176
Step 49: 4176 + 87 = 4263
Step 50: 4263 + 87 = 4350
Step 51: 4350 + 87 = 4437
Step 52: 4437 + 87 = 4524
Step 53: 4524 + 87 = 4611
Step 54: 4611 + 87 = 4698
Step 55: 4698 + 87 = 4785
Step 56: 4785 + 87 = 4872
Step 57: 4872 + 87 = 4959
Step 58: 4959 + 87 = 5046
Step 59: 5046 + 87 = 5133
Step 60: 5133 + 87 = 5220
Step 61: 5220 + 87 = 5307
Step 62: 5307 + 87 = 5394
Step 63: 5394 + 87 = 5481
Step 64: 5481 + 87 = 5568
Step 65: 5568 + 87 = 5655
Step 66: 5655 + 87 = 5742
Step 67: 5742 + 87 = 5829
Step 68: 5829 + 87 = 5916
Step 69: 5916 + 87 = 6003
Step 70: 6003 + 87 = 6090
Step 71: 6090 + 87 = 6177
Step 72: 6177 + 87 = 6264
Step 73: 6264 + 87 = 6351
Step 74: 6351 + 87 = 6438
Step 75: 6438 + 87 = 6525
Step 76: 6525 + 87 = 6612
Step 77: 6612 + 87 = 6699
Step 78: 6699 + 87 = 6786
Step 79: 6786 + 87 = 6873
Step 80: 6873 + 87 = 6960
Step 81: 6960 + 87 = 7047
Step 82: 7047 + 87 = 7134
Step 83: 7134 + 87 = 7221
Step 84: 7221 + 87 = 7308
Step 85: 7308 + 87 = 7395
Step 86: 7395 + 87 = 7482
Step 87: 7482 + 87 = 7569
Step 88: 7569 + 87 = 7656
Step 89: 7656 + 87 = 7743
Step 90: 7743 + 87 = 7830
Step 91: 7830 + 87 = 7917
Step 92: 7917 + 87 = 8004
Step 93: 8004 + 87 = 8091
Step 94: 8091 + 87 = 8178
Step 95: 8178 + 87 = 8265
Step 96: 8265 + 87 = 8352
Step 97: 8352 + 87 = 8439
Step 98: 8439 + 87 = 8526
Step 99: 8526 + 87 = 8613
Step 100: 8613 + 87 = 8700
Step 101: 8700 + 87 = 8787
Step 102: 8787 + 87 = 8874
Step 103: 8874 + 87 = 8961
Step 104: 8961 + 87 = 9048
Step 105: 9048 + 87 = 9135
Step 106: 9135 + 87 = 9222
Step 107: 9222 + 87 = 9309
Step 108: 9309 + 87 = 9396
Step 109: 9396 + 87 = 9483
Step 110: 9483 + 87 = 9570
Step 111: 9570 + 87 = 9657
Step 112: 9657 + 87 = 9744
Step 113: 9744 + 87 = 9831
Step 114: 9831 + 87 = 9918
Step 115: 9918 + 87 = 10005
Step 116: 10005 + 87 = 10092
Step 117: 10092 + 87 = 10179
Step 118: 10179 + 87 = 10266
Step 119: 10266 + 87 = 10353
Step 120: 10353 + 87 = 10440
Step 121: 10440 + 87 = 10527
Step 122: 10527 + 87 = 10614
Step 123: 10614 + 87 = 10701
Step 124: 10701 + 87 = 10788
Step 125: 10788 + 87 = 10875
Step 126: 10875 + 87 = 10962
Step 127: 10962 + 87 = 11049
Step 128: 11049 + 87 = 11136
Step 129: 11136 + 87 = 11223
Step 130: 11223 + 87 = 11310
Step 131: 11310 + 87 = 11397
Step 132: 11397 + 87 = 11484
Step 133: 11484 + 87 = 11571
Step 134: 11571 + 87 = 11658
Step 135: 11658 + 87 = 11745
Step 136: 11745 + 87 = 11832
Step 137: 11832 + 87 = 11919
Step 138: 11919 + 87 = 12006
Step 139: 12006 + 87 = 12093
Step 140: 12093 + 87 = 12180
Step 141: 12180 + 87 = 12267
Step 142: 12267 + 87 = 12354
Step 143: 12354 + 87 = 12441
Step 144: 12441 + 87 = 12528
Step 145: 12528 + 87 = 12615
Step 146: 12615 + 87 = 12702
Step 147: 12702 + 87 = 12789
Step 148: 12789 + 87 = 12876
Step 149: 12876 + 87 = 12963
Step 150: 12963 + 87 = 13050
Step 151: 13050 + 87 = 13137
Step 152: 13137 + 87 = 13224
Step 153: 13224 + 87 = 13311
Step 154: 13311 + 87 = 13398
Step 155: 13398 + 87 = 13485
Step 156: 13485 + 87 = 13572
Step 157: 13572 + 87 = 13659
Step 158: 13659 + 87 = 13746
Step 159: 13746 + 87 = 13833
Step 160: 13833 + 87 = 13920
Step 161: 13920 + 87 = 14007
Step 162: 14007 + 87 = 14094
Step 163: 14094 + 87 = 14181
Step 164: 14181 + 87 = 14268
Step 165: 14268 + 87 = 14355
Step 166: 14355 + 87 = 14442
Step 167: 14442 + 87 = 14529
Step 168: 14529 + 87 = 14616
Step 169: 14616 + 87 = 14703
Step 170: 14703 + 87 = 14790
Step 171: 14790 + 87 = 14877
Step 172: 14877 + 87 = 14964
Step 173: 14964 + 87 = 15051
Step 174: 15051 + 87 = 15138
Step 175: 15138 + 87 = 15225
Step 176: 15225 + 87 = 15312
Step 177: 15312 + 87 = 15399
Step 178: 15399 + 87 = 15486
Step 179: 15486 + 87 = 15573
Step 180: 15573 + 87 = 15660
Step 181: 15660 + 87 = 15747
Step 182: 15747 + 87 = 15834
Step 183: 15834 + 87 = 15921
Step 184: 15921 + 87 = 16008
Step 185: 16008 + 87 = 16095
Step 186: 16095 + 87 = 16182
Step 187: 16182 + 87 = 16269
Step 188: 16269 + 87 = 16356
Step 189: 16356 + 87 = 16443
Step 190: 16443 + 87 = 16530
Step 191: 16530 + 87 = 16617
Step 192: 16617 + 87 = 16704
Step 193: 16704 + 87 = 16791
Step 194: 16791 + 87 = 16878
Step 195: 16878 + 87 = 16965
Step 196: 16965 + 87 = 17052
Step 197: 17052 + 87 = 17139
Step 198: 17139 + 87 = 17226
Step 199: 17226 + 87 = 17313
Step 200: 17313 + 87 = 17400
Step 201: 17400 + 87 = 17487
Step 202: 17487 + 87 = 17574
Step 203: 17574 + 87 = 17661
Step 204: 17661 + 87 = 17748
Step 205: 17748 + 87 = 17835
Step 206: 17835 + 87 = 17922
Step 207: 17922 + 87 = 18009
Step 208: 18009 + 87 = 18096
Step 209: 18096 + 87 = 18183
Step 210: 18183 + 87 = 18270
Step 211: 18270 + 87 = 18357
Step 212: 18357 + 87 = 18444
Step 213: 18444 + 87 = 18531
Step 214: 18531 + 87 = 18618
Step 215: 18618 + 87 = 18705
Step 216: 18705 + 87 = 18792
Step 217: 18792 + 87 = 18879
Step 218: 18879 + 87 = 18966
Step 219: 18966 + 87 = 19053
Step 220: 19053 + 87 = 19140
Step 221: 19140 + 87 = 19227
Step 222: 19227 + 87 = 19314
Step 223: 19314 + 87 = 19401
Step 224: 19401 + 87 = 19488
Step 225: 19488 + 87 = 19575
Step 226: 19575 + 87 = 19662
Step 227: 19662 + 87 = 19749
Step 228: 19749 + 87 = 19836
Step 229: 19836 + 87 = 19923
Step 230: 19923 + 87 = 20010
Step 231: 20010 + 87 = 20097
Step 232: 20097 + 87 = 20184
Step 233: 20184 + 87 = 20271
Step 234: 20271 + 87 = 20358
Step 235: 20358 + 87 = 20445
Step 236: 20445 + 87 = 20532
Step 237: 20532 + 87 = 20619
Step 238: 20619 + 87 = 20706
Step 239: 20706 + 87 = 20793
Step 240: 20793 + 87 = 20880
Step 241: 20880 + 87 = 20967
Step 242: 20967 + 87 = 21054
Step 243: 21054 + 87 = 21141
Step 244: 21141 + 87 = 21228
Step 245: 21228 + 87 = 21315
Step 246: 21315 + 87 = 21402
Step 247: 21402 + 87 = 21489
Step 248: 21489 + 87 = 21576
Step 249: 21576 + 87 = 21663
Step 250: 21663 + 87 = 21750
Step 251: 21750 + 87 = 21837
Step 252: 21837 + 87 = 21924
Step 253: 21924 + 87 = 22011
Step 254: 22011 + 87 = 22098
Step 255: 22098 + 87 = 22185
Step 256: 22185 + 87 = 22272
Step 257: 22272 + 87 = 22359
Step 258: 22359 + 87 = 22446
Step 259: 22446 + 87 = 22533
Step 260: 22533 + 87 = 22620
Step 261: 22620 + 87 = 22707
Step 262: 22707 + 87 = 22794
Step 263: 22794 + 87 = 22881
Step 264: 22881 + 87 = 22968
Step 265: 22968 + 87 = 23055
Step 266: 23055 + 87 = 23142
Step 267: 23142 + 87 = 23229
Step 268: 23229 + 87 = 23316
Step 269: 23316 + 87 = 23403
Step 270: 23403 + 87 = 23490
Step 271: 23490 + 87 = 23577
Step 272: 23577 + 87 = 23664
Step 273: 23664 + 87 = 23751
Step 274: 23751 + 87 = 23838
Step 275: 23838 + 87 = 23925
Step 276: 23925 + 87 = 24012
Step 277: 24012 + 87 = 24099
Step 278: 24099 + 87 = 24186
Step 279: 24186 + 87 = 24273
Step 280: 24273 + 87 = 24360
Step 281: 24360 + 87 = 24447
Step 282: 24447 + 87 = 24534
Step 283: 24534 + 87 = 24621
Step 284: 24621 + 87 = 24708
Step 285: 24708 + 87 = 24795
Step 286: 24795 + 87 = 24882
Step 287: 24882 + 87 = 24969
Step 288: 24969 + 87 = 25056
Step 289: 25056 + 87 = 25143
Step 290: 25143 + 87 = 25230
Step 291: 25230 + 87 = 25317
Step 292: 25317 + 87 = 25404
Step 293: 25404 + 87 = 25491
Step 294: 25491 + 87 = 25578
Step 295: 25578 + 87 = 25665
Step 296: 25665 + 87 = 25752
Step 297: 25752 + 87 = 25839
Step 298: 25839 + 87 = 25926
Step 299: 25926 + 87 = 26013
Step 300: 26013 + 87 = 26100
Step 301: 26100 + 87 = 26187
Step 302: 26187 + 87 = 26274
Step 303: 26274 + 87 = 26361
Step 304: 26361 + 87 = 26448
Step 305: 26448 + 87 = 26535
Step 306: 26535 + 87 = 26622
Step 307: 26622 + 87 = 26709
Step 308: 26709 + 87 = 26796
Step 309: 26796 + 87 = 26883
Step 310: 26883 + 87 = 26970
Step 311: 26970 + 87 = 27057
Step 312: 27057 + 87 = 27144
Step 313: 27144 + 87 = 27231
Step 314: 27231 + 87 = 27318
Step 315: 27318 + 87 = 27405
Step 316: 27405 + 87 = 27492
Step 317: 27492 + 87 = 27579
Step 318: 27579 + 87 = 27666
Step 319: 27666 + 87 = 27753
Step 320: 27753 + 87 = 27840
Step 321: 27840 + 87 = 27927
Step 322: 27927 + 87 = 28014
Step 323: 28014 + 87 = 28101
Step 324: 28101 + 87 = 28188
Step 325: 28188 + 87 = 28275
Step 326: 28275 + 87 = 28362
Step 327: 28362 + 87 = 28449
Step 328: 28449 + 87 = 28536
Step 329: 28536 + 87 = 28623
Step 330: 28623 + 87 = 28710
Step 331: 28710 + 87 = 28797
Step 332: 28797 + 87 = 28884
Step 333: 28884 + 87 = 28971
Step 334: 28971 + 87 = 29058
Step 335: 29058 + 87 = 29145
Step 336: 29145 + 87 = 29232
Step 337: 29232 + 87 = 29319
Step 338: 29319 + 87 = 29406
Step 339: 29406 + 87 = 29493
Step 340: 29493 + 87 = 29580
Step 341: 29580 + 87 = 29667
Step 342: 29667 + 87 = 29754
Step 343: 29754 + 87 = 29841
Step 344: 29841 + 87 = 29928
Step 345: 29928 + 87 = 30015
Step 346: 30015 + 87 = 30102
Step 347: 30102 + 87 = 30189
Step 348: 30189 + 87 = 30276
Step 349: 30276 + 87 = 30363
Step 350: 30363 + 87 = 30450
Step 351: 30450 + 87 = 30537
Step 352: 30537 + 87 = 30624
Step 353: 30624 + 87 = 30711
Step 354: 30711 + 87 = 30798
Step 355: 30798 + 87 = 30885
Step 356: 30885 + 87 = 30972
Step 357: 30972 + 87 = 31059
Step 358: 31059 + 87 = 31146
Step 359: 31146 + 87 = 31233
Step 360: 31233 + 87 = 31320
Step 361: 31320 + 87 = 31407
Step 362: 31407 + 87 = 31494
Step 363: 31494 + 87 = 31581
Step 364: 31581 + 87 = 31668
Step 365: 31668 + 87 = 31755
Step 366: 31755 + 87 = 31842
Step 367: 31842 + 87 = 31929
Step 368: 31929 + 87 = 32016
Step 369: 32016 + 87 = 32103
Step 370: 32103 + 87 = 32190
Step 371: 32190 + 87 = 32277
Step 372: 32277 + 87 = 32364
Step 373: 32364 + 87 = 32451
Step 374: 32451 + 87 = 32538
Step 375: 32538 + 87 = 32625
Step 376: 32625 + 87 = 32712
Step 377: 32712 + 87 = 32799
Step 378: 32799 + 87 = 32886
Step 379: 32886 + 87 = 32973
Step 380: 32973 + 87 = 33060
Step 381: 33060 + 87 = 33147
Step 382: 33147 + 87 = 33234
Step 383: 33234 + 87 = 33321
Step 384: 33321 + 87 = 33408
Step 385: 33408 + 87 = 33495
Step 386: 33495 + 87 = 33582
Step 387: 33582 + 87 = 33669
Step 388: 33669 + 87 = 33756
Step 389: 33756 + 87 = 33843
Step 390: 33843 + 87 = 33930
Step 391: 33930 + 87 = 34017
Step 392: 34017 + 87 = 34104
Step 393: 34104 + 87 = 34191
Step 394: 34191 + 87 = 34278
Step 395: 34278 + 87 = 34365
Step 396: 34365 + 87 = 34452
Step 397: 34452 + 87 = 34539
Step 398: 34539 + 87 = 34626
Step 399: 34626 + 87 = 34713
Step 400: 34713 + 87 = 34800
Step 401: 34800 + 87 = 34887
Step 402: 34887 + 87 = 34974
Step 403: 34974 + 87 = 35061
Step 404: 35061 + 87 = 35148
Step 405: 35148 + 87 = 35235
Step 406: 35235 + 87 = 35322
Step 407: 35322 + 87 = 35409
Step 408: 35409 + 87 = 35496
Step 409: 35496 + 87 = 35583
Step 410: 35583 + 87 = 35670
Step 411: 35670 + 87 = 35757
Step 412: 35757 + 87 = 35844
Step 413: 35844 + 87 = 35931
Step 414: 35931 + 87 = 36018
Step 415: 36018 + 87 = 36105
Step 416: 36105 + 87 = 36192
Step 417: 36192 + 87 = 36279
Step 418: 36279 + 87 = 36366
Step 419: 36366 + 87 = 36453
Step 420: 36453 + 87 = 36540
Step 421: 36540 + 87 = 36627
Step 422: 36627 + 87 = 36714
Step 423: 36714 + 87 = 36801
Step 424: 36801 + 87 = 36888
Step 425: 36888 + 87 = 36975
Step 426: 36975 + 87 = 37062
Step 427: 37062 + 87 = 37149
Step 428: 37149 + 87 = 37236
Step 429: 37236 + 87 = 37323
Step 430: 37323 + 87 = 37410
Step 431: 37410 + 87 = 37497
Step 432: 37497 + 87 = 37584
Step 433: 37584 + 87 = 37671
Step 434: 37671 + 87 = 37758
Step 435: 37758 + 87 = 37845
Step 436: 37845 + 87 = 37932
Step 437: 37932 + 87 = 38019
Step 438: 38019 + 87 = 38106
Step 439: 38106 + 87 = 38193
Step 440: 38193 + 87 = 38280
Step 441: 38280 + 87 = 38367
Step 442: 38367 + 87 = 38454
Step 443: 38454 + 87 = 38541
Step 444: 38541 + 87 = 38628
Step 445: 38628 + 87 = 38715
Step 446: 38715 + 87 = 38802
Step 447: 38802 + 87 = 38889
Step 448: 38889 + 87 = 38976
Step 449: 38976 + 87 = 39063
Step 450: 39063 + 87 = 39150
Step 451: 39150 + 87 = 39237

So, 87*451 = 39237